Supports containers while being heated on a tripod
Mortar and Pestle
Crushing
Watch glass
holding chemicals
Testtube Rack
Holding testtubes
Testtube
Holding chemicals and liquids
Measuring cylinder
Measuring volume of liquids
Retort stand
Supporting a boss head and clamp
boss head and clamp
supporting equipment at a particular height`
Tripod
supporting beakers while being heated
Crucible
burning things and keeping the gas in
Evaporating basin
Evaporating liquids
Funnel
Separating or pouring carefully
Variables
A Variable is a factor in an experiment that we are able to change. Eg in heating water we could change -
time we heat it,
how much water we use
the strength of the heat
what you heat water in
how far the water is from the heat.
In the expt how long does it take to heat water Dependent(or the measured)variable is the time in seconds the water took to reach 100 degrees Celsius
Independent variablemanipulated variableis the strength of the heat used. In this case the Bunsen burner on a heating flame - but if we had used a candle we might expect it to take longer. We control all these other variables like how much water we are heating, the distance to the flame etc
The dependent variable is the one we are measuring.
Fair tests we control all the variables except the one we are testing. So in the bouncing ball experiment we want to know which type of ball bounces highest. We will control the height from which they are dropped the The surface on to which they are dropped how new the ball is how you drop the ball. the way you measure how high it bounces?
Bouncing Ball experiment
Aim: To determine which ball bounces highest.
Hypothesis:
Method:
Equipment required is metre rule, 3 different balls, table top.
Drop the first ball from 1 metre and measure how high the bottom of the ball bounces up.
repeat this 3 times
Record results in a table
repeat steps 2, 3 and 4 with another ball and with all other balls.
TEXTBOOK for staff reference
HOMEWORK
Expectations in your Science classroom,
Fields of Science – do you know a Scientist?
What do scientists do
Brainstorm
Getting to know you activity
Draw a scientist
Pretest – science safety Ed Perf
Think Q’s 1-3
Investigate Q’s 6 & 7
Biology, Chemistry, Physics, Geology, Psychology, Astronomy, etc.
Getting to know the lab
Safety in the Lab
Working with dangerous chemicals
Bunsen Burner license
Lab safety – worksheet
Bunsen Burner info
Bunsen Burner practical test
P11 Which flame is hotter
p12 Where is the hottest part of the flame
p12 Heating a substance in a test tube
Bunsen burner, tripod, heat proof mat, gauze mat, beaker, stirring rod, evaporating dish, conical flask, test tube, spatula, retort stand, bosshead, filter paper, measuring cylinder, corrosive, toxic, flammable,
Observations
Inferences
Hypothesis
Conclusion
Another Candle Experiment
Worksheet 1.3 jacplus
Observations, inferences, hypothesis, conclusion, data,
Variables
Fair testing
Control
p 16 Bouncing Balls
Design an experiment
Worksheet 1.4 jacplus
Independent variable. Dependent variable, controlled variable, fair test, estimate, measure
Graphs- column, histogram, line
Pie charts
Pasco data prac – recording temp change
Practical How many Drops of water
Worksheet 1.5 jacplus
Values, interpret, bar chart, line graph, pie chart, histogram x axis, y axis,
Aim, materials, method, results, discussion,
p 23 Recording Observations in a table
p24 Graphing Temperature
Scientific report, excel spreadsheet
Being a Scientist. Class Notes
Science is everywhere 7F
1 Notes on Science Equipment
Variables
A Variable is a factor in an experiment that we are able to change.Eg in heating water we could change -
- time we heat it,
- how much water we use
- the strength of the heat
- what you heat water in
- how far the water is from the heat.
In the expt how long does it take to heat waterDependent (or the measured) variable is the time in seconds the water took to reach 100 degrees Celsius
Independent variable manipulated variable is the strength of the heat used. In this case the Bunsen burner on a heating flame - but if we had used a candle we might expect it to take longer. We control all these other variables like how much water we are heating, the distance to the flame etc
The dependent variable is the one we are measuring.
Fair tests
we control all the variables except the one we are testing. So in the bouncing ball experiment we want to know which type of ball bounces highest.
We will control the height from which they are dropped the
The surface on to which they are dropped
how new the ball is
how you drop the ball.
the way you measure how high it bounces?
Bouncing Ball experiment
Aim: To determine which ball bounces highest.
Hypothesis:
Method:
Results:
first trial
Conclusion